Slave SQL: Slave failed to initialize relay log info structure from the repository, Error_code: 1872
問題：
mysql> start slave;
ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository
查看mysql錯誤日志：
解決方法：
應該是之前做過主從生成了主從同步日志，到mysql_data3306目錄刪除同步日志即可啟動
rm -rf relay-log.info
